<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <meta http-equiv="X-UA-Compatible" content="ie=edge" />
  <title>Document</title>
  <style>
  	html,body,#app{
  		width: 100%;
  		height: 100%;
  	}
  </style>
</head>

<body>
  <div id="app">

  </div>
</body>
<script></script>

</html>